CN106707440B - Fiber cable laying system and method suitable for long range coiled tubing - Google Patents
Fiber cable laying system and method suitable for long range coiled tubing Download PDFInfo
- Publication number
- CN106707440B CN106707440B CN201710093996.9A CN201710093996A CN106707440B CN 106707440 B CN106707440 B CN 106707440B CN 201710093996 A CN201710093996 A CN 201710093996A CN 106707440 B CN106707440 B CN 106707440B
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- China
- Prior art keywords
- coiled tubing
- optical cable
- air seal
- water supply
- seal set
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/52—Underground or underwater installation; Installation through tubing, conduits or ducts using fluid, e.g. air
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts
- G02B6/54—Underground or underwater installation; Installation through tubing, conduits or ducts using mechanical means, e.g. pulling or pushing devices
Abstract
The invention discloses a kind of fiber cable laying system and methods suitable for long range coiled tubing.The system includes the optical cable that the first preset length is wound on the optical cable wind, for pushing optical cable according to pre-set velocity；The air seal set is arranged inside coiled tubing, can have the frictional force of default size between the coiled tubing；One end of the optical cable is fixed on the predeterminated position of the air seal set；The water supply device is connected to coiled tubing sealing, and the side that the optical cable enters the coiled tubing is set, drive the fiber cable laying into the coiled tubing for inputting air seal set described in the water jet propulsion of preset pressure and pre-set velocity into the coiled tubing.This method is realized based on above system.The embodiment of the present invention is suitable for the different situations that long range coiled tubing is unfolded or winds, that is, not will receive the influence of place size when implementing, improve the applicability of the system and method.
Description
Technical field
The present invention relates to oil field optical fiber logging technique field more particularly to a kind of optical cables suitable for long range coiled tubing
Laying system and method.
Background technique
Currently, fibre optical sensor is used widely in oilfield, for example, the pressure of each oil well in oil field, temperature or
The monitoring of person's multiphase flow etc. and the downhole parameters such as sound wave.
There are many ways to optical fiber is entered into well in the prior art.For example, optical fiber is bundled in oil pipe outer surface, using oil pipe
Outer cluster enters well；Optical cable is placed in coiled tubing, well is entered using coiled tubing formula；Or by light by the way of cement sheath well cementation
Cable is applied in oil well.Coiled tubing is tiled in shallow well at present and is unfolded, then enters coiled tubing using air-blowing steel wire, it
The method that optical cable is pulled in coiled tubing with hoisting machinery tractive force afterwards is more common.
When realizing technical solution of the present invention, the inventors found that: when oil well depth is greater than 2000 meters, by
It is influenced in by place and resistance, above-mentioned various schemes are affected.Such as optical fiber cluster enters well and is entered well mode shadow
It rings, is not applied for institute's testing well in need；For another example, the problems such as place is limited when oil pipe tiles.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of fiber cable laying system suitable for long range coiled tubing
And method, it can not be asked using test optical fiber when for solving to lay optical fiber in the prior art by place and too deep oil well
Topic.
In a first aspect, the present invention provides a kind of fiber cable laying system suitable for long range coiled tubing, the system
Including optical cable wind, water supply device and air seal set；
The optical cable of the first preset length is wound on the optical cable wind, for pushing optical cable according to pre-set velocity；
The air seal set is arranged inside coiled tubing, has the friction of default size between the coiled tubing
Power；
One end of the optical cable is fixed on the predeterminated position of the air seal set；
The water supply device is connected to coiled tubing sealing, and the optical cable is arranged in into the coiled tubing
Side, for being inputted into the coiled tubing described in air seal set drive described in the water jet propulsion of preset pressure and pre-set velocity
Fiber cable laying is into the coiled tubing.
Optionally, the system also includes coiled tubing winds；Second is wound on the coiled tubing wind
The coiled tubing of preset length.
Optionally, the system also includes test devices；The test device is for obtaining and showing the coiled tubing
The movement speed of interior pressure, optical cable and the discharge capacity of water supply device.
Optionally, the system also includes throttling sets；The optical cable that the coiled tubing is arranged in the throttling set enters
At mouthful, the inlet of the coiled tubing is entered for sealing the optical cable.
Optionally, the system also includes for nitrogen device；It is described to be connected to for nitrogen device with the coiled tubing, it is used for institute
It states and inputs nitrogen in coiled tubing to drain the moisture in the coiled tubing.
Second aspect, the embodiment of the invention also provides a kind of optical cable laying method suitable for long range coiled tubing,
It is realized based on optical cable hauling-off gear described in first aspect, which comprises
Air seal set is fixed on optical cable one end, and is placed into coiled tubing；
Optical cable wind pushes optical cable into coiled tubing with pre-set velocity；
Sealing gland described in the water jet propulsion of preset pressure and pre-set velocity is inputted into the coiled tubing using water supply device
Device drives the fiber cable laying into the coiled tubing.
Optionally, described that air seal set is fixed on optical cable one end, and be placed into before the step in coiled tubing, it is described
Method further include:
Water flow is inputted into coiled tubing using water supply device；
Pressure testing is carried out to the coiled tubing；Wherein test pressure about 30MPa, pressure maintaining 10min, discharge capacity are less than 290L/
min。
Optionally, the method also includes:
Pressure in the coiled tubing, the movement speed of optical cable and water supply device are obtained and shown using test device
Discharge capacity.
Optionally, the method also includes:
When the optical cable reaches the predeterminated position of the coiled tubing, optical cable wind is reduced with default retro-speed
Pushing speed until stop；
The water supply device stops inputting water flow into the coiled tubing.
Optionally, the method also includes:
When the optical cable reaches predeterminated position, input gas carries out bulge test in Xiang Suoshu optical cable；
And/or
Optical fiber is tested using feux rouges.
Optionally, the method also includes:
Using inputting nitrogen into the coiled tubing for nitrogen device to drain the moisture in the coiled tubing.
System provided in an embodiment of the present invention is provided with optical cable wind, water supply device and air seal set；First is default
The optical cable of length is wrapped on optical cable wind, can be pushed to optical cable according to pre-set velocity using the optical cable wind
In coiled tubing；Optical cable one end is fixed on air seal set, and air seal set is placed in coiled tubing, guarantees the sealing gland
There is the frictional force of default size in device and coiled tubing；Water supply device is connected to the sealing of above-mentioned coiled tubing, and setting is even
The inlet of continuous oil pipe, can input the above-mentioned air seal set of water jet propulsion of preset pressure and pre-set velocity into the coiled tubing
It is moved in coiled tubing, air seal set can be by fiber cable laying into coiled tubing when mobile.Compared with prior art, this hair
Air seal set is pushed to move (pulling force of the optical cable by air seal set at this time in coiled tubing using water supply device in bright embodiment
Effect), the push (thrust of the optical cable by air seal set at this time) in conjunction with optical cable wind to optical cable can make optical cable
Under tension and thrust collective effect fast move in coiled tubing, to reach fiber cable laying to long range coiled tubing
In purpose.Also, the embodiment of the present invention is suitable for the different situations that long range coiled tubing is unfolded or winds, that is, when implementing
The influence that not will receive place size improves the applicability of the system and method.
Detailed description of the invention
The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings, and attached drawing is schematically without that should manage
Solution is carries out any restrictions to the present invention, in the accompanying drawings:
Fig. 1 is the structural representation of the fiber cable laying system provided in an embodiment of the present invention suitable for long range coiled tubing
Figure；
Fig. 2 is the process signal of the optical cable laying method provided in an embodiment of the present invention suitable for long range coiled tubing
Figure；
Fig. 3 is pressure change schematic diagram in coiled tubing.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
The present invention provides a kind of fiber cable laying systems suitable for long range coiled tubing, and the system comprises optical cables to twine
Winding apparatus, water supply device and air seal set；
The optical cable of the first preset length is wound on the optical cable wind, for pushing optical cable according to pre-set velocity；
The air seal set is arranged inside coiled tubing, has the friction of default size between the coiled tubing
Power；
One end of the optical cable is fixed on the predeterminated position of the air seal set；
The water supply device is connected to coiled tubing sealing, and the optical cable is arranged in into the coiled tubing
Side, for being inputted into the coiled tubing described in air seal set drive described in the water jet propulsion of preset pressure and pre-set velocity
Fiber cable laying is into the coiled tubing.
It should be noted that " connection " refers to two parts not only physical seal contact of docking in the embodiment of the present invention, and
And also will form space after contacting flows through gas or liquid.For example, two segment pipes are connected by connection valve in the prior art,
The pipeline physical seal contact formed after connection, and water flow can pass through from the pipeline.Pipeline after being connected to is flowing through
Body (gas or liquid) is equivalent to a segment pipe, is only that length is changed.
It should be noted that the first preset length is the parameter for characterizing cable length in the embodiment of the present invention, and hereafter
In the second preset length be characterize coiled tubing length parameter.Under normal circumstances, the second preset length can be according to oil well depth
Degree or actual demand are adjusted.In the embodiment of the present invention, which is greater than 2000 meters.Above-mentioned first default length
Degree is adjusted according to the second preset length, and in practical application, which needs to be greater than the second preset length.
It should be noted that optical cable enters the speed of coiled tubing when above-mentioned pre-set velocity refers to the rotation of optical cable wind
Degree, i.e., coiled tubing is static, displacement of the optical cable relative to coiled tubing in the unit time.The pre-set velocity can be according to reality
It needs to be adjusted, the present invention is not construed as limiting.
It should be noted that the frictional force of above-mentioned default size is quiet between characterization air seal set and coiled tubing inner wall
Frictional force and elastic force.In practical application, frictional force i.e. two can also be not present between above-mentioned air seal set and coiled tubing inner wall
Person does not contact.It will be appreciated that between air seal set and coiled tubing inner wall there are frictional force and/elastic force or when, be more convenient control
Make the movement speed of the air seal set.Those skilled in the art can reasonably adjust the big of above-mentioned frictional force according to actual needs
Small, the present invention is not construed as limiting.
It should be noted that during the water flow of water supply device offer preset pressure and pre-set velocity, the preset pressure
It can be adjusted according to actual needs.In practical application, the pre-set velocity of water flow and the pre-set velocity of optical cable are preferably identical, from
And optical cable is made to keep uniform force.
As shown in Figure 1, above-mentioned optical cable wind 1 can be realized using driving equipment 11 and optical cable roller 12.Above-mentioned light
The optical cable 4 of the first preset length is wound on cable roller 12, driving equipment 11 is connect by connecting shaft with above-mentioned optical cable roller 12.It is real
In the application of border, above-mentioned driving equipment 11 can be using automatic equipment (such as asynchronous motor, dc motor, stepping motor
Deng) or mechanical equipment (such as Mechanical Driven, driven by shaking etc.).Optical cable roller 12 can then use common iron frame.It drives
Dynamic equipment 11 drives the optical cable roller 12 to rotate with angular speed w when being controlled signal or external driving force, at this time optical cable
It is mobile with pre-set velocity.
As shown in Figure 1, above-mentioned water supply device 2 includes pump truck 21 and water pot 22.Above-mentioned pump truck 21 is in the prior art
Commercialization is no longer introduced herein.Above-mentioned water pot 22 can use individual tank body, can also build reservoir on the spot, or use
Tank body in pump truck 21 realizes that effect is to provide water source for pump truck 21.Water supply device 2 is connected to coiled tubing 5 in the present invention
(" " indicates three-way valve 7 in Fig. 1), for inputting the water of water flow or preset pressure and pre-set velocity into coiled tubing 5
Stream.Referring to Fig. 1, by adjusting the adjustable distribution into coiled tubing water flow of valve 91 in the present invention.
The situation at the A of the arrival coiled tubing of air seal set 3 is shown in Fig. 1 in oval dashed box.On as shown in Figure 1,
Stating air seal set 3 can be realized using cutting ferrule and elastic head (being not shown in the figure).After above-mentioned cutting ferrule can will polish smooth
Optical cable one end is fixed, and elastic head can be made of rubber material.The size of the elastic head according to the internal diameter of coiled tubing into
Row setting, under normal circumstances, which is slightly larger than the internal diameter of coiled tubing, thus when inside elastic head merging coiled tubing
The frictional force of default size is kept between the two.Those skilled in the art can comprehensively consider frictional force, elastic head material, continuous
Pipe aperture adjusts elastic area of bed, and the present invention is not construed as limiting.
In practical application, fiber cable laying system provided in an embodiment of the present invention further includes coiled tubing wind 6, the company
The coiled tubing of the second preset length is wound on continuous oil pipe wind 6.Coiled tubing wind 6 can use common
The realization of iron frame.The coiled tubing wind 6 can remove according to concrete scene in the embodiment of the present invention.Herein specifically
Bright purpose is that when the state of coiled tubing is winding state, fiber cable laying system provided by the invention can be equally applicable in.
In other words, fiber cable laying system provided by the invention is by the coiled tubing when institute of fiber cable laying to coiled tubing especially long range
The place needed is smaller, greatly improves the scope of application of system.
In practical application, fiber cable laying system provided in an embodiment of the present invention further includes test device 8.As shown in Figure 1, should
Test device 8 includes test equipment and display equipment (not shown), and wherein test equipment is arranged by three-way valve even
Inside continuous oil pipe 5, display equipment is arranged outside coiled tubing 5.It is arrived inside coiled tubing 5 in this way, test equipment is available
Pressure (air pressure or hydraulic pressure), the discharge capacity of the movement speed of optical cable and water supply device 2 (can use water velocity and continuous oil
Bore is calculated).Then show that above-mentioned each parameter is presented to operator by equipment.It should be noted that due to above-mentioned
Each parameter is related to laying optical cable, therefore above-mentioned several parameters are only described in the embodiment of the present invention.Those skilled in the art can
The detection parameters and quantity of above-mentioned test device 8 according to actual needs, are arranged, the present invention is not construed as limiting.
In practical application, fiber cable laying system provided in an embodiment of the present invention further includes for nitrogen device (not shown).
This, when fiber cable laying is completed, is connected to and inputs nitrogen, with coiled tubing 5 for nitrogen device so as to drain in coiled tubing 5
Moisture.This can be communicated to coiled tubing 5 by three-way valve 7 using nitrogen gas tank in the prior art for nitrogen device.Certainly,
Those skilled in the art can also be above-mentioned for nitrogen device using other equipment substitution, equally may be implemented in discharge coiled tubing 5
The purpose of moisture.
In practical application, fiber cable laying system provided in an embodiment of the present invention further includes throttling set (not shown).
The throttling set can be realized using throttle pipe in the prior art, be arranged at the Cable entry of coiled tubing 5, for sealing
Optical cable enters the inlet of coiled tubing 5.In practical application, the length of the throttle pipe can be set 1~4 meter.Referring to Fig. 1,
Above-mentioned throttling set can be set at the B of position, and position B is located at one end of coiled tubing, and optical cable enters continuously from the end
Oil pipe, and the throttling set is connected to (inlet that the three-way valve 7 is fixed on throttling set) with the three-way valve 7 at B.?
That is two ports, throttle pipe and the coiled tubing of three-way valve become a pipeline in the vertical direction, facilitate optical cable into
Enter.Another outlet of three-way valve 5 is for inputting water flow, air-flow etc..
Second aspect, the embodiment of the invention also provides a kind of optical cable laying method suitable for long range coiled tubing,
It is realized based on optical cable hauling-off gear described in first aspect, as shown in Figure 2, which comprises
S1, air seal set is fixed on to optical cable one end, and be placed into coiled tubing；
S2, optical cable wind push optical cable into coiled tubing with pre-set velocity；
S3, gas described in the water jet propulsion of preset pressure and pre-set velocity is inputted into the coiled tubing using water supply device
Seal apparatus drives the fiber cable laying into the coiled tubing.
In practical application, before step S1, throttle pipe is set at the Cable entry of coiled tubing, then in the throttling
Three-way valve is set at tube inlet.Water flow is inputted into coiled tubing using three-way valve and carries out pressure testing.Wherein test pressure is big
About 30MPa, pressure maintaining 10min, discharge capacity are less than 290L/min.If coiled tubing meets above-mentioned requirements, illustrate that coiled tubing seals
Property is preferable, can carry out step S1~S3.Otherwise, leakage point is searched according to common process and carry out relevant treatment, herein no longer in detail
It is thin to introduce.
When air seal set being fixed on optical cable one end in step S1, above-mentioned optical cable one end is polished smooth, facilitate it is fixed with
And sealing.
In practical application, to prevent damage optical cable, optical cable laying method provided by the invention further include:
S4, obtain and show that pressure, the movement speed of optical cable and water supply in the coiled tubing are filled using test device
The discharge capacity set.
In step S2 and S3, the speed and water supply device of optical cable wind push optical cable input water to coiled tubing
The speed of stream needs to cooperate, so that the parameters such as pressure, movement of optical cables speed in test device coiled tubing detected
Curve keeps smooth, to prevent pressure or the too fast damage optical cable of movement speed.
Further, for prevent damage optical cable, optical cable laying method provided by the invention further include:
S5, when the optical cable reaches the predeterminated position of the coiled tubing, optical cable winding is reduced with default retro-speed
The pushing speed of device is until stop.As shown in figure 3, in coiled tubing pressure change curve.
S6, the water supply device stop inputting water flow into the coiled tubing.
In this way, keeping optical cable slow by adjusting pressure and being smoothly moved to the predeterminated position of coiled tubing.
To guarantee the optical cable reliably working after laying, laying method provided in an embodiment of the present invention further include:
S7, when the optical cable reaches predeterminated position, input gas carries out bulge test in Xiang Suoshu optical cable；And and/
Or, testing optical fiber using feux rouges.
It should be noted that the other end of optical cable is got to from optical cable wind after optical cable reaches predeterminated position, to
The gas of preset pressure is injected in optical cable, within a preset time, optical cable is able to maintain above-mentioned preset pressure (in error range), then
Illustrate that optical cable is unbroken in this laying.Then illustrate optical cable when the other end detects feux rouges using feux rouges test optical fiber
Can reliably it make.
After step S7, using inputting nitrogen into the coiled tubing for nitrogen device to drain in the coiled tubing
Moisture.
As it can be seen that the fiber cable laying system and method provided in an embodiment of the present invention suitable for long range coiled tubing, utilizes
Water supply device pushes air seal set to move (pulling force effect of the optical cable by air seal set at this time) in coiled tubing, in conjunction with optical cable
Push (at this time optical cable thrust by air seal set) of the wind to optical cable, can make optical cable under tension and thrust
Collective effect fast moves in coiled tubing, to achieve the purpose that fiber cable laying into long range coiled tubing.Also,
The embodiment of the present invention is suitable for the different situations that long range coiled tubing is unfolded or winds, that is, it is big not will receive place when implementing
Small influence improves the applicability of the system and method.
In the present invention, term " first ", " second ", " third " are used for description purposes only, and should not be understood as instruction or
Imply relative importance.Term " multiple " refers to two or more, unless otherwise restricted clearly.
Although the embodiments of the invention are described in conjunction with the attached drawings, but those skilled in the art can not depart from this hair
Various modifications and variations are made in the case where bright spirit and scope, such modifications and variations are each fallen within by appended claims
Within limited range.
Claims (8)
1. a kind of fiber cable laying system suitable for long range coiled tubing, which is characterized in that the system comprises optical cable windings
Device, water supply device and air seal set；
The optical cable of the first preset length is wound on the optical cable wind, for pushing optical cable according to pre-set velocity；
The air seal set is arranged inside coiled tubing, has the frictional force of default size between the coiled tubing；
One end of the optical cable is fixed on the predeterminated position of the air seal set；
The water supply device is connected to coiled tubing sealing, and is arranged in the optical cable enters the coiled tubing one
Side drives the light for inputting air seal set described in the water jet propulsion of preset pressure and pre-set velocity into the coiled tubing
Cable is applied in the coiled tubing；
The air seal set includes cutting ferrule and elastic head, and the elastic head is slightly larger than the internal diameter of the coiled tubing；
The system also includes for nitrogen device；It is described to be connected to for nitrogen device with the coiled tubing, it is used for the coiled tubing
Middle input nitrogen is to drain the moisture in the coiled tubing.
2. fiber cable laying system according to claim 1, which is characterized in that the system also includes coiled tubing windings to fill
It sets；The coiled tubing of the second preset length is wound on the coiled tubing wind.
3. fiber cable laying system according to claim 1 or 2, which is characterized in that the system also includes test devices；Institute
Test device is stated for obtaining and showing pressure, the discharge capacity of the movement speed of optical cable and water supply device in the coiled tubing.
4. fiber cable laying system according to claim 1 or 2, which is characterized in that the system also includes throttling sets；Institute
It states throttling set to be arranged at the Cable entry of the coiled tubing, for sealing the optical cable entering into the coiled tubing
At mouthful.
5. a kind of optical cable laying method suitable for long range coiled tubing, which is characterized in that any based on Claims 1 to 4
Fiber cable laying system described in is realized, which comprises
Air seal set is fixed on optical cable one end, and is placed into coiled tubing；
Optical cable wind pushes optical cable into coiled tubing with pre-set velocity；
Air seal set described in the water jet propulsion of preset pressure and pre-set velocity is inputted into the coiled tubing using water supply device
Drive the fiber cable laying into the coiled tubing；
The air seal set includes cutting ferrule and elastic head, and the elastic head is slightly larger than the internal diameter of the coiled tubing；
The method also includes:
Using inputting nitrogen into the coiled tubing for nitrogen device to drain the moisture in the coiled tubing.
6. optical cable laying method according to claim 5, which is characterized in that described that air seal set is fixed on optical cable one
End, and be placed into before the step in coiled tubing, the method also includes:
Water flow is inputted into coiled tubing using water supply device；
Pressure testing is carried out to the coiled tubing；Wherein test pressure about 30MPa, pressure maintaining 10min, discharge capacity are less than 290L/min.
7. optical cable laying method according to claim 5 or 6, which is characterized in that the method also includes:
The row of pressure in the coiled tubing, the movement speed of optical cable and water supply device is obtained and shown using test device
Amount.
8. optical cable laying method according to claim 5 or 6, which is characterized in that the method also includes:
When the optical cable reaches the predeterminated position of the coiled tubing, pushing away for optical cable wind is reduced to preset retro-speed
Speed is sent until stopping；
The water supply device stops inputting water flow into the coiled tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710093996.9A CN106707440B (en) | 2017-02-21 | 2017-02-21 | Fiber cable laying system and method suitable for long range coiled tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710093996.9A CN106707440B (en) | 2017-02-21 | 2017-02-21 | Fiber cable laying system and method suitable for long range coiled tubing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106707440A CN106707440A (en) | 2017-05-24 |
| CN106707440B true CN106707440B (en) | 2019-07-19 |
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ID=58917129
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710093996.9A Active CN106707440B (en) | 2017-02-21 | 2017-02-21 | Fiber cable laying system and method suitable for long range coiled tubing |
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| CN (1) | CN106707440B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107893653A (en) * | 2017-08-14 | 2018-04-10 | 东方宝麟科技发展(北京)有限公司 | A kind of method using coiled tubing optical fiber technology testing level well production profile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4941774A (en) * | 1986-10-15 | 1990-07-17 | Rudolf Harmstorf | Method and an apparatus for moving a rope- or cable-like element through a cable channel pipe |
| WO1992017927A1 (en) * | 1991-04-05 | 1992-10-15 | Emberti Gialloreti Ugo | A method and apparatus for laying a cable into a tube by means of a pressurized hydraulic fluid |
| WO1994009538A1 (en) * | 1992-10-20 | 1994-04-28 | Meab Mobile Equipment Ab | A method of inserting cables into tubing |
| CN1296655A (en) * | 1998-02-04 | 2001-05-23 | 法国电讯公司 | Method for installing and/or removing cable in cable passage conduits and implementing device |
-
2017
- 2017-02-21 CN CN201710093996.9A patent/CN106707440B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4941774A (en) * | 1986-10-15 | 1990-07-17 | Rudolf Harmstorf | Method and an apparatus for moving a rope- or cable-like element through a cable channel pipe |
| WO1992017927A1 (en) * | 1991-04-05 | 1992-10-15 | Emberti Gialloreti Ugo | A method and apparatus for laying a cable into a tube by means of a pressurized hydraulic fluid |
| WO1994009538A1 (en) * | 1992-10-20 | 1994-04-28 | Meab Mobile Equipment Ab | A method of inserting cables into tubing |
| CN1296655A (en) * | 1998-02-04 | 2001-05-23 | 法国电讯公司 | Method for installing and/or removing cable in cable passage conduits and implementing device |
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| Publication number | Publication date |
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| CN106707440A (en) | 2017-05-24 |
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